Hello friends my sister using xiaomi redmi note 4. When we work one this phone video, watching movies , whattapp and etc become heat.but carmer is good and selfee.xiaomi redmi note 4 is battry is average it is a 4gb ram 64 intenal storage. I gift my friend xiaomi redmi not 4.it launch in jan 2017.xiaomi redmi not 4 4 gb is average